Dental Fresh Advanced Whitening for Dogs is the “world’s first and only clinically proven toothbrush in a bottle.” Scientifically formulated to noticeably reduce surface stains and reverse discoloration to reveal pet’s naturally white smile.Dental Fresh Advanced Whitening for Dogs is the “world’s first and only clinically proven toothbrush in a bottle.” Scientifically formulated to noticeably reduce surface stains and reverse discoloration to reveal pet’s naturally white smile. Safe and benefici..